EP1295767A2 - Bras d'essuie-glace et méthode pour fabriquer un bras d'essuie-glace - Google Patents

Bras d'essuie-glace et méthode pour fabriquer un bras d'essuie-glace Download PDF

Info

Publication number
EP1295767A2
EP1295767A2 EP02012753A EP02012753A EP1295767A2 EP 1295767 A2 EP1295767 A2 EP 1295767A2 EP 02012753 A EP02012753 A EP 02012753A EP 02012753 A EP02012753 A EP 02012753A EP 1295767 A2 EP1295767 A2 EP 1295767A2
Authority
EP
European Patent Office
Prior art keywords
wiper arm
crank
bearing
wiper
bearing shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02012753A
Other languages
German (de)
English (en)
Other versions
EP1295767B1 (fr
EP1295767A3 (fr
Inventor
Laurent Heinrich
Karlheinz Lorenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1295767A2 publication Critical patent/EP1295767A2/fr
Publication of EP1295767A3 publication Critical patent/EP1295767A3/fr
Application granted granted Critical
Publication of EP1295767B1 publication Critical patent/EP1295767B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/18—Means for transmitting drive mechanically
    • B60S1/24—Means for transmitting drive mechanically by rotary cranks
    • B60S1/245—Means for transmitting drive mechanically by rotary cranks with particular rod arrangements between the motor driven axle and the wiper arm axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3402—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns
    • B60S1/3409—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns the wiper arms consisting of two or more articulated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/09—Windscreen wipers, e.g. pivots therefore
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/49622—Vehicular structural member making

Definitions

  • the invention relates to a wiper arm and a Wiper device, in particular for a motor vehicle, according to Genre of independent claims.
  • the wiper arm consists of these wiping devices from a joint part and a Fastening part with two cranks, by means of which the Wiper arm is articulated on the wiper device.
  • a pendulum stroke movement which the sweep allows a cheaper wiping surface than a bare one Pendulum movement, where a circular ring segment was swept becomes.
  • the fastening part must be in the Bearing areas of the cranks be designed to be particularly stable and therefore has a relatively large overall height.
  • the wiper arm according to the invention with the features of The main claim has the advantage that the fastening part has two cranks, each with a bearing pin are connected in a rotationally fixed manner, the fastening part being made of there is a carrier part in which the bearing shell for the Bearing pin is injected.
  • the fastening part has two cranks, each with a bearing pin are connected in a rotationally fixed manner, the fastening part being made of there is a carrier part in which the bearing shell for the Bearing pin is injected.
  • the Overall height of the fastening part and thus the entire Wiper arms are reduced, which has a positive effect on the Flow properties and thus on the wind noise of the Wiper arm affects.
  • the low overall height improves Optics achieved because the wiper arm in the park position for example under the hood of the motor vehicle can disappear.
  • Ball socket and the bearing pin are designed as ball pins are. This way the crank that comes with the Bearing pin is non-rotatably connected without an axial Attachment to be buttoned into the bearing shell if Bearing shell includes more than one hemisphere of the bearing pin.
  • first crank through a cylindrical bearing pin and the second crank supported by a spherical bearing pin in the carrier part are.
  • the bearing forces in particular reduced if the drive axles of the cranks are not exact are aligned parallel to each other, as in the Series production within the usual tolerances often the Case is.
  • the wiper arm according to the invention which a Fastening part with two cranks, the first Crank by a swivel and the second crank by one Ball joint on the support part has the advantage that the bearing forces through the two-dimensional Possibility of movement of the second crank can be reduced, if the drive axles of the two cranks are not exact are aligned parallel to each other.
  • Carrier part protected from environmental influences by a cover is to prevent dirt and corrosion on the carrier part and especially to prevent the bearings.
  • the wiper device according to the invention with the features of Claim 9 has the advantage that it has a low overall height has in the field of vision, whereby the aerodynamics of the Wiper device is improved and wind noise Wiping device can be reduced.
  • FIG. 1 shows a wiper device (10) according to the invention shown schematically with a four-bar linkage. This exists essentially from a drive unit 12, which two Wiper arms 14, 14a drives on which wiper blades 16, 16a are attached. The wiper blades 16, 16a slide during operation swinging over a disc 18, for example the Windshield of a motor vehicle.
  • the drive unit 12 is, for example, a rotating one or reversing electric motor, whose Armature shaft combs a worm wheel by means of a worm.
  • the shaft of the worm wheel forms the output shaft 20 the drive unit 12.
  • the wiper arms 14, 14a each have a joint part 22, 22a, which is connected at one end to the wiper blade 16 or with the wiper blade 16a rotatable connected is.
  • a hinge part 22 of the wiper arms 14, 14a is at the end facing away from the wiper blade 16 with a Fastening part 24 connected, which consists essentially of a longitudinal part 26 and two cranks 28, 30.
  • the two cranks 28, 30 are each with one end rotatably attached to the longitudinal member 26.
  • the first crank 28 is with its end facing away from the longitudinal part 26, with the Output shaft 20 of the drive unit 12 rotatably connected.
  • the second crank 30 is with its longitudinal part 26 remote end on the vehicle body or on one fixed bearings on the wiper device with constant distance pivoted to the output shaft 20.
  • the driver's wiper arm 14a is, as is common practice, via a wiper bearing 32 with a drive crank 34 rotatably connected, which in turn via a push rod 36 eccentric to the output shaft 20, for example via a Lever 38 arranged at a fixed angle to the first crank 28 or is connected directly to the first crank 28, so that the drive end of the push rod 36 in operation Circular or at least circular arc-shaped movement performs.
  • the driver-side wiper blade 16a moves over the Disc 18 and sweeps the area of one Circular ring segment.
  • the passenger-side wiper blade 16 sweeps an area equal to the area of a Corresponds to the circular ring segment, but with a Stroke movement is superimposed.
  • FIG. 2 shows a cross section through the fastening part 24 shown.
  • the longitudinal part 26 consists of a carrier part 40 which is covered by a cover 42.
  • a bearing shell 44 is injected on it Inside has a spherical shell section, in which a Ball pin 46 is mounted. Bearing shell 44 and ball pin 46 thus form a spherical bearing 47.
  • the ball pin 46 consists essentially of a Spherical section to which a cylindrical section 48 followed.
  • This cylindrical section 48 passes through the first crank 28 in its full thickness, or otherwise is formulated in a bore in the first crank 28 used and facing away from the spherical bearing 47 Side of the first crank 28, for example by welding or caulking attached.
  • the second crank 30 is over a second bearing 50 attached to the support member 40.
  • the second bearing 50 consists of a ball bearing 52, whose outer ring is pressed into the carrier part 40.
  • the Inner ring of the ball bearing 52 carries the cylinder pin 54, which is caulked with the inner ring.
  • the cylinder pin 54 is tapered outside the area of the ball bearing 52.
  • This tapered section 56 is in a bore of the second crank 30 used and rotatably with this connected. This is achieved, for example, in that the tapered section 56 has the second crank 30 in it reaches full thickness and on the second bearing 50 opposite side is welded, caulked or riveted.
  • the hinge part 22 is on the support part 40 of the longitudinal part 26 ( Figure 1) connected by means of a joint that folds down the wiper arm 14 from the surface to be wiped, for example for changing the wiper blade 16, allowed.
  • the carrier part 40 is in a casting process manufactured.
  • the bearing part 40 has injected bearing shells 44 Locking elements 58, for example a tooth-like Have structure on and which prevent the injected bearing shell 44 during operation from Carrier part 40 releases and rotates with the ball pin 46.
  • the carrier part 40 can also be made of a carbon fiber material be made, which increases the weight of the longitudinal part 26 can be reduced.
  • the bearing shells 44 can be made from Be made of plastic.
  • the wiper arm according to the invention can then be the carrier part 40 be placed in a mold for the bearing shells 44 and then the material for the bearing shells 44 are injected so that the bearing shells 44 directly on the carrier part 40 are injection molded. Then you can Cranks 28, 30 are connected to the ball pins 46, and the cranks 28, 30 are pressed into the bearing shells 44 become.
  • the cranks 28, 30 be made of a carbon material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
EP02012753A 2001-09-21 2002-06-08 Bras d'essuie-glace Expired - Lifetime EP1295767B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146721A DE10146721A1 (de) 2001-09-21 2001-09-21 Wischerarm sowie Scheibenwischvorrichtung und Verfahren zur Herstellung eines Wischerarms, insbesondere für eine Wischvorrichtung eines Kraftfahrzeugs
DE10146721 2001-09-21

Publications (3)

Publication Number Publication Date
EP1295767A2 true EP1295767A2 (fr) 2003-03-26
EP1295767A3 EP1295767A3 (fr) 2004-03-24
EP1295767B1 EP1295767B1 (fr) 2007-03-28

Family

ID=7699895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012753A Expired - Lifetime EP1295767B1 (fr) 2001-09-21 2002-06-08 Bras d'essuie-glace

Country Status (4)

Country Link
US (1) US20030056314A1 (fr)
EP (1) EP1295767B1 (fr)
DE (2) DE10146721A1 (fr)
ES (1) ES2280453T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006072497A1 (fr) 2004-12-29 2006-07-13 Robert Bosch Gmbh Dispositif d'essuie-glace

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10261926A1 (de) * 2002-12-23 2004-07-01 Robert Bosch Gmbh Antriebsordnung einer Wischvorrichtung für Scheiben von Kraftfahrzeugen
DE102008001938A1 (de) * 2008-05-21 2009-11-26 Robert Bosch Gmbh Wischerarm für eine Scheibenwischanlage, Scheibenwischanlage sowie Verfahren zur Montage einer Scheibenwischanlage
JP5996486B2 (ja) * 2012-08-06 2016-09-21 アスモ株式会社 車両用ワイパ装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032762C2 (de) 1990-08-03 1995-08-31 Bosch Gmbh Robert Wischvorrichtung für Scheiben von Kraftfahrzeugen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102061B (en) * 1981-06-24 1985-03-06 Gen Motors Ltd Windscreen wiper linkage ball and socket joint assembly
CA1299333C (fr) * 1987-04-13 1992-04-28 Yasuyoshi Nakajima Methode de moulage integral d'un element a une portion d'element rigide
DE3920243C2 (de) * 1989-06-21 1998-08-20 Teves Gmbh Alfred Gelenkverbindung
DE4436373A1 (de) * 1994-10-12 1996-04-18 Teves Gmbh Alfred Viergelenkwischarm für eine Scheibenwischeranlage eines Kraftfahrzeuges
US6119301A (en) * 1997-12-11 2000-09-19 Asmo Co., Ltd. Wiper device including cover
GB2344850B (en) * 1998-12-18 2002-10-16 Components & Linkages Group Lt Rod end bearing
JP4204134B2 (ja) * 1999-03-08 2009-01-07 株式会社ミツバ ワイパ装置におけるワイパアームの防水構造
DE19933615A1 (de) * 1999-07-17 2001-01-25 Bosch Gmbh Robert Vorrichtung zum Antrieb eines Wischarms
DE10013201A1 (de) * 2000-03-17 2001-09-27 Bosch Gmbh Robert Scheibenwischerantrieb
DE10013190A1 (de) * 2000-03-17 2001-09-27 Bosch Gmbh Robert Scheibenwischerantrieb
DE10138003A1 (de) * 2001-08-02 2003-02-20 Bosch Gmbh Robert Wischerarm sowie Scheibenwischervorrichtung, insbesondere für ein Kraftfahrzeug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032762C2 (de) 1990-08-03 1995-08-31 Bosch Gmbh Robert Wischvorrichtung für Scheiben von Kraftfahrzeugen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006072497A1 (fr) 2004-12-29 2006-07-13 Robert Bosch Gmbh Dispositif d'essuie-glace

Also Published As

Publication number Publication date
EP1295767B1 (fr) 2007-03-28
DE50209823D1 (de) 2007-05-10
DE10146721A1 (de) 2003-04-17
US20030056314A1 (en) 2003-03-27
EP1295767A3 (fr) 2004-03-24
ES2280453T3 (es) 2007-09-16

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